Pipe-coupling.



lR. R. RUST.

PIPE COUPLING.

APPLIOAMON FILED M1116, 1909.

961,987, Patented June 21,1910.

M Av2 Eg 3 INYENTOR www ATTORNEYS RGBERT R. RUST, OF NEW YORK, N. Y.

PIPE-COUPLING.

Specification of Letters Patent.

Patented J une 21, 19\}.

Application led April 16, 1909. Serial No. 490,236.

T o all 'whom 'it may concern:

Be it known that I, ROBERT R. RUST, a citizenl of the United States of America, residing in the borough of Manhattan, in the city, county, and State of New York, have invented certain new and useful Improvements in Pipe-Couplings, of which the following is a specification.

My invention relates to pipe coupling means, more particularly for pipes made of cast iron or like inelastic metal.

The object of my invention is to provide convenient and simple means for securely coupling the pipe sections together to secure a good joint, and this without danger of breaking lugs, flanges or other coupling parts when the draw bolts and nuts are tightened up. x

' In the accompanying drawing Figure 1 is a side view of a cou ling ring section; Fig. 2 is an edge view; Fig. 3 is a sectional View on the line 3 3, Fig. 1; Fig. 4 is a perspective view `ofha pair of the rings, drawn to a smaller scale; Fig. 5 is a sectional View showing two pipe ends secured together by the use of my improved rings.

While my improvement is applicable to various forms of pipe ends, I have shown it in Fig. 5, by way of example, applied to a form in which one pipe section A has perforated lugs or flange a for the passage of headed securing bolts B, B, -while the end of the adjacent section D has a notched projecting part d in the form of a lange or lugs for the guidance of the bolts. In conjunction with the part d, I provide the sectional rings R, R, to embrace the pi e and bear against the flange or lugs d. rThe detailed construction of these rings will be best understood by reference to Figs. l to 4. It will be seen that in the present instance the ring is made in two sectlons, each approximately a semi-circle with a perforated lu 6 at each end. Each lug is made about hal the thickness of the ring and with its inner face beveled, as best shown in Fig. 2, so that when the two halves are put together to form a completecircle the lugs 6 on one part will lit over the lugs on the other part with the holes 7 in the fitted lugs in alinement to receive the ends of the draw bolts B, which thereby keep the ring sections together in a complete ring. Nuts N, Fig. 5, screw onto the ends of the bolts to draw, the ends of the pipe sections together by pressing the ring sections R against the bearing face of the lugs or flange d. This bearing face of the flange d is m a plane substantially at right angles to the axis of the pipe. On the faces of the ring sections which'are to lie next to this flange al I provide projecting bearing faces 1", 1', adjacent to the lugs 6, so that when the nuts N are screwed up, these projections 1' will afford definite bearing points adjacent to the bolts and in' s ure a better joint at the meeting faces of the pipe ends than if the ring should bear against the llange d all the way around. This construction will also avoid breakage such as might otherwise happen if the flange d were uneven.

I prefer to form the cut-away or reduced part to produce the half thicknessv of lug 6 at opposite ends of each ring section R on opposite faces as shown in Figs. 2 and 4, so that all ring sections will be exactly alike and interchangeable.

I claim as my invention- A sectional bearing ring for coupling pipes, having perforated matching lugs at the ends of the sections for the passage 'of draw bolts and projecting bearin faces adjacent to said lugs, in combination with a pipe section having a flange with a bearing face adjacent to the ring in' a plane subst antially at right angles to the axis of the pipe.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witneses.

' ROBERT R. RUST.

Witnesses:

WALTER E. Bimenes, Wnmrsm HAL'roN. 

